It is assumed that this is nothing related with them wanting to charge money for premium services
Lots of people are aware that there was a problem over the weekend with co-author requests being sent out, and some forced adding as authors to communities.
It was a long weekend in the US, but it seems the MyBlogLog team have already fixed it, rolled back any changes, and hopefully it won’t happen again.
As recently shown, people don’t read your terms of service. My stats also show that people don’t read my comments policy before posting a comment. Sometimes I am forced to delete comments from possibly well meaning people who don’t realise that their comment might be looked on as spam .